Hi Peter The first request is fulfilled by vmprof
The second one can be worked on using the same mechanisms as vmprof - there is C API that given the assembler address will give you the python stack. It's defined in rpython/jit/backend/llsupport/src/codemap.c I believe On Thu, Aug 4, 2016 at 3:05 AM, Wang, Peter Xihong <peter.xihong.w...@intel.com> wrote: > HI Armin and Maciej, > > Let us know once you have something we could actually try. One requirement > is on the sampling/profiling overhead, ideally <1%, but >5% could be > troublesome. We'd like to allow people to do performance analysis on > production systems. > > Meanwhile, could I make this as two separate requests: > 1. Application hot spot analysis. Today I could run cProfile with CPython > and get application code profiles running OpenStack Swift, but can't do the > same thing with PyPy > 2. JITed code (assembly) mapping back to the application Python code. VTUNE > integration with HHVM and node.js are completed and working today, and I'd > hope to see same capability with PyPy. > > Thanks, > > Peter > > > > -----Original Message----- > From: armin.r...@gmail.com [mailto:armin.r...@gmail.com] On Behalf Of Armin > Rigo > Sent: Tuesday, August 02, 2016 1:18 AM > To: Maciej Fijalkowski <fij...@gmail.com> > Cc: Wang, Peter Xihong <peter.xihong.w...@intel.com>; pypy-dev@python.org > Subject: Re: [pypy-dev] how to extend VTUNE support from pypy for application > hot spot analysis > > Hi, > > On 2 August 2016 at 10:09, Maciej Fijalkowski <fij...@gmail.com> wrote: >>> As far as I know (my team members tried this), vmprof does not allow us to >>> attach to a running process? We will evaluate >>> https://github.com/vmprof/vmprof-python if you think it's doable. >> >> You would need some form of process cooperation (I think) but it does >> not seem impossible. What I would do is I would run a separate thread >> that accepts something (e.g. a pipe write) and then starts vmprof. >> vmprof once started is global to all threads > > Also, please note that I mentioned vmprof as a way to get started. > You would need some *like* what vmprof does; for a clean solution you don't > want to enable an additional profiler on your vtune code. > > > A bientôt, > > Armin. _______________________________________________ pypy-dev mailing list pypy-dev@python.org https://mail.python.org/mailman/listinfo/pypy-dev
